DISTRIBUTION OF GROWTH-FORMS. 175 



G. Dax 2. 



G. Dax 3. 



G. DoAV If. 



G. Gironde 1. 



G. Gironde 3. 



G. Paris Basin 3. Perhaps thick eucrusting. 



G. Paris Basin 7. 



G. Paris Basin 10. 



G. Paris Basin 12. 



G. France a. 



G. Hampshire 1. 



? G. AntigiM 1. 



G. Bxplanate. 



Produced by the expansions of the primitive colony mainly round the edges. According 

 as there is any growth in thickness or not we obtain (a) thick, or (b) thin colonies, mostly 

 encrusting ; the very thin sometimes expand freely. 



(a).... Thick encrusting. This may easily become irregularly massive : — 

 G. Alessandria 1. 

 G. Turin 1. 

 G. Vienna Basin J/.. 

 G. Crimea 1. 

 Doubtful :— 

 G. Philippines J/.. , 



G. Java Sea 2. 

 G. Paris Basin 3. 

 G. Paris Basin 11. 



(&) Thin:— 



G. Great Barrier Beef 1. See also under E h. 



G. Nwth- West Australia 3. 



G. North- West Australia 3. 



G. Cliina Sea 2. 



G. Chi7ia Sea 3. 



G. Maldives 1. 



G. Mauritius 1. Columns rise from its surface. 



G. Red Sea 5. 



G. Genoa 3 



G. Genoa 5. 



G. Paris Basin 2. 



G. Paris basin 8. 



H. Forvis whose method of f/rowth cannot yet be defined. 



G. Samoa 1. ? Columnar. 

 G. Vicenza 10. ? Branching. 



G. Coutanees 1. ? Oval, drawn out into linger-sliaped knobs which may have 

 waved about at the tips of weeds. 



